Door-knob rose.



No. 653.693 Patented July l7, I900. W. E. PARKER. DOOR KNOB ROSE.

(Application filed Mar. 3, 1900.

(No Model.)

LOU/755555 KWW- W NITED STATES PATENT OFFICE.

WILLIAM E. PARKER, OF NEWV BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL(is ERWVIN MANUFACTURING COMPANY, OF SAME PLACE.

DOOR-KNOB ROSE.

SPECIF CATION forming part of Letters Patent No. 653,693, dated July 17,1900.

Application filed March 3, 1900. Serial No. 7,164. (No model.)

To all whom it may concern.-

Be it known that LWILLIAM E. PARKER, a citizen of the United States,residing in New Britain, in the countyof Hartford and State ofConnecticut, have invented a new and useful Improvement in Door-KnobRoses, of which the following is a specification, reference being had tothe accompanying drawings, forming a part thereof.

to My invention relates to improvements in knob-roses; and the mainobject of my improvement is to provide a hollow or raised-up sheet-metalrose-plate with an internal support adjacent to the knob-spindle.

In the accompanyiing drawings, Figure 1 is a front elevation of myknob-rose having a combined rose and escutcheon plate. Fig. 2 is a rearelevation of the upper part of the same. Fig. 3 is a horizontal sectionthereof on the line 50:1: of Fig. l, and Fig. 4 is a front elevation ofmy knob-rose with a rose-plate substituted for the combined rose andescut-cheon plate.

The combined rose and escutcheon plate 5 is formed of comparatively-thinsheet metal struck up in dies, so as to elevate or project its centralportion 6 and form What I term a hollow back. This plate may be of anydesired contour and is provided with screw-holes 7 for use in securingthe plate to a door. I prefer to force the metal inwardly around thescrew-holes in an old and Well-known manner. An ordinary keyhole 8 isformed at the proper point in the plate 5, and a round hole 9,

5 Fig. 2, is formed in the said plate to receive the knob-rose center10. I form the said rosecenter of sheet metal, with its front of thedesired diameter to receive the end of the knobshank and with a circularboss 11 on its back,

the said boss being of a diameterto be received in the hole 9.

In order to support the rose-plate against the endwise pressure of theknob-shank and prevent the metal at the middle portion of the 5 platefrom being crushed in toward the door, I secure the flangedsupporting-ring 12 within the hollow back of the plate 5 immediatelyback of the rose-center. The supporting-ring is formed of sheet metal ofsufficient thickness to resist such endwise pressure as will ordinarilybe exerted on the knob-shank, and it is struck up into what may becalled cupshaped, with a border flange and with a cen tral hole of asize to receive the circular boss 11 of the rose-center 10. The depth ofthe supporting-ring-that is, its dimension from front to rear-is equalto the depth of the depression on the back of the plate 5. The circularboss 11 is of a cylindrical form when first made, and it is passedthrough the round hole 9 in the plate 5 from the front, after which thesupporting-ring 12 is placed over the'said boss 11 from the back of thesaid plate, and the outer end of the boss 11 is turned over to securethe said parts firmly together, as shown in Fig. 3.

It will readily be seen that the rear face of the flangedsupporting-ring 12 is in the same plane as the rear of the plate 5 atits edges, so as to rest against the surface of the door to which therose may be applied. The rear face of the said ring is broad enough toform a firm bearing that cannot be compressed into the surface of thewood, and the depth of the ring 12 from front to rear is such as toprevent. the middle portion of the plate 5 from being depressed or bentout of place. I am thus enabled to construct the plate 5 of thin metaland connect the same With the rose-center in an inexpensive manner, andat the same time the said thin-metal plate is firmly supported and maybe cheaply given any desired orna mental form or design.

In Fig. 4 the plate 5 is designed for a roseplate onlyinstead of acombined rose and cs cutcheon plate, as in the preceding figures.

It. has the same rose-center 10, secured in the manner and by the meanshereinbefore described.

I claim as my invention- 0 The combination of the struck-up sheetmetalrose-plate having an elevated plate-like middle portion that forms ahollow back,with the rose-center on the front of the said plate, and thesupporting-ring on the rear thereof for supporting the middle portion ofthe said sheet-metal rose-plate against the endwise pressure of theknob'shank, substantially as described.

WILLIAM E. PARKER.

Witnesses:

F. G. TAYLOR, C. L. BLIss.

